A Class A Output Stage

** Circuit Description **
* power supplies
Vcc+ 1 0 DC +15V
Vcc- 2 0 DC -15V
* input signal source
Vi 3 0 DC 0V
* output transistor
Q1 1 3 4 Q2N2222A
* load resistance
Rl 4 0 1k
* bias circuit
R 0 5 5k
Q2 4 5 2 Q2N2222A
Q3 5 5 2 Q2N2222A
* transistor model statement for the 2N2222A
.model Q2N2222A  NPN (Is=14.34f Xti=3 Eg=1.11 Vaf=74.03 Bf=255.9 Ne=1.307
+                    Ise=14.34f Ikf=.2847 Xtb=1.5 Br=6.092 Nc=2 Isc=0 Ikr=0 Rc=1
+                    Cjc=7.306p Mjc=.3416 Vjc=.75 Fc=.5 Cje=22.01p Mje=.377 Vje=.75
+                    Tr=46.91n Tf=411.1p Itf=.6 Vtf=1.7 Xtf=3 Rb=10)
** Analysis Requests **
.dc Vi -20V +20V 100mV
** Output Requests **
.plot dc V(4)
.probe
.end